The 30% discount card doesn't show while restocking anymore. Not for the 15% discount boost or just general restocking.

see you have a discount card! I'll give you a discounted price of 323 sP! Wormwood has been added to your inventory.

Mine still shows. Are you still having that problem?

Hmmmmm..... that's very weird. It's fine now and I'm a doof again. Thank you!

maybe it was just a hiccup :P no problem!